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To solve this problem, U.S. Navy ships have been using expensive 30 mm rounds.

However, the new DSG rounds with CAV-X technology solve this issue, Garberg said. Ships can fire without fear of a round skimming the surface. The round will just penetrate the water, Garberg said.

This also could be useful in large scale swarming attacks by smaller craft, Garberg explained.

U.S. vessels in the tightly congested Persian Gulf have been routinely harassed by Iranian small boats. The CAV-X round could provide U.S. warships with a new capability to engage these craft with minimal risk to other U.S. or allied ships.

A representative at U.S. Navy Surface Warfare Center told Military Times that they are currently testing the rounds.